Autor segons l'article: Balabanov, Stanislav; Permin, Dmitry; Evstropov, Timofey; Andreev, Pavel; Basyrova, Liza; Camy, Patrice; Baranov, Mikhail; Mateos, Xavier; Loiko, Pavel;
Departament: Química Física i Inorgànica
Autor/s de la URV: Mateos Ferré, Xavier
Paraules clau: Yttrium oxide Ytterbium-doped Ytterbium ion Ytterbium compounds Yag Y2o3 Y$-2$/o$-3$ Transparent ceramics Transparent ceramic Transparent Temperature Sps Sintering aid Sintering Pressung Peculiarities Nd Luminescence Lithium fluoride Laser operations Laser operation Laser ceramics In-vacuum Hot uniaxial pressing Hot isostatic pressing Fluorine compounds Fabrication Ceramic materials
Resum: Transparent ytterbium doped yttria ceramics, 2 at.% Yb:Y2O3, were fabricated by hot uniaxial pressing in vacuum at 1550 degrees C/50 MPa followed by a two stage Hot Isostatic Pressing (HIPing) at 1200 1400 degrees C/100 MPa, using nanopowders obtained by self-propagating high-temperature synthesis (with lithium fluoride serving as a sintering aid). The addition of LiF during the powder synthesis markedly changed the morphology of powders, and at the stage of hot pressing, drastically reduced the carbon contamination of ceramics, as well as stimulated sintering without formation of the liquid phase. The spectroscopic properties of ceramics were studied. The stimulated-emission cross-section for Yb3+ ions is 0.90 x 10(-20) cm(2) at 1030.4 nm and the luminescence lifetime is 797 mu s. A continuous wave 2 at.% Yb:Y2O3 ceramic laser generated an output power of 735 mW at 1027 1034 nm with a slope efficiency of 64.5% and a laser threshold of 0.28 W.
Àrees temàtiques: Spectroscopy Química Physical and theoretical chemistry Physical and theoretical c Organic chemistry Optics Odontología Medicina ii Materials science, multidisciplinary Materials science Materiais Interdisciplinar Inorganic chemistry General computer science Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Electrical and electronic engineering Computer science (miscellaneous) Ciências ambientais Ciência de alimentos Biotecnología Biodiversidade Atomic and molecular physics, and optics Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: xavier.mateos@urv.cat
Identificador de l'autor: 0000-0003-1940-1990
Data d'alta del registre: 2024-07-27
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Optical Materials. 119
Referència de l'ítem segons les normes APA: Balabanov, Stanislav; Permin, Dmitry; Evstropov, Timofey; Andreev, Pavel; Basyrova, Liza; Camy, Patrice; Baranov, Mikhail; Mateos, Xavier; Loiko, Pave (2021). Hot pressing of Yb:Y2O3 laser ceramics with LiF sintering aid. Optical Materials, 119(), -. DOI: 10.1016/j.optmat.2021.111349
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications
Repositori URV